Sun Constellations Book Sleeve- The sleeve protects your book from dust and the cover from tearing, dont let your books go unprotected .It is a wonderful and unforgettable gift for book lovers. Size - This book sleeve is measured approximately 11x8.7"(28 x 22cm) and fits most self published books (6x9) up to 600 pages, standard paperbacks, mass paperbacks, and regular hardcovers. Outside the bag is measured approximately 8x8.7"(20.5 x 22cm) Extra Pocket- The book cover is enhanced with a extra pocket (9"x8") in the front which can hold a notebook, small journal, pen/pencil, phone, kindle, or even some smaller books Zippered Closure - Features a high quality smooth zippered closure for added protection,your books are secure and wont fall out. You can be sure that your story is safe and sound the next time you take it for a cup of coffee Interesting design- The patterns of our book sleeve is designed with slim and pretty hands,constellations,sun,moon patterns. It is very beautiful. It is very suitable for you who like astrology.